import { useState, useEffect } from "react";

import { router, useLocalSearchParams } from "expo-router";

import { View, StyleSheet, ScrollView } from "react-native";

import { Text } from "@/components/ui/Text";

import { Grid, Col, Center } from "@/components/ui/LayoutHelpers";

import { Card } from "@/components/ui/Cards";

import { Button } from "@/components/ui/Button";

import { TextArea } from "@/components/ui/Input";

import { Section, SectionHeader } from "@/components/ui/Sections";

import { Spacing, Typography, Colors } from "@/constants/theme";

import { ScaleSlider } from "@/components/ui/ScaleSlider";

import { MoodComponentCard } from "@/components/ui/MoodComponentCard";

import { Ionicons } from "@expo/vector-icons";

import { useThemeColor, useCreateMoodEntry, usePatchCareAction } from "@/hooks";

import { useMoodEntryStore, useCareActionLinkStore } from "@/stores";

import { getMood } from "@/constants/moods";

import { intensityToValue } from "@/constants/mood-components";

export default function NewMoodEntry() {

  const tintColor = useThemeColor({}, "tint");

  const { initialMood } = useLocalSearchParams<{ initialMood?: string }>();

  const [annotation, setAnnotation] = useState('');

  const [stress, setStress] = useState(0);

  const [anxiety, setAnxiety] = useState(0);

  const [energy, setEnergy] = useState(0);

  const { selectedMood, setSelectedMood, components, reset } =

    useMoodEntryStore();

  const createMoodEntry = useCreateMoodEntry();

  const patchCareAction = usePatchCareAction();

  useEffect(() => {

    if (initialMood) setSelectedMood(initialMood);

  }, [initialMood, setSelectedMood]);

  useEffect(() => {

    return () => reset();

  }, [reset]);

  const saveMoodEntry = async () => {

    const data = {

      selectedMood: (selectedMood ?? 'neutral').toUpperCase(),

      stressLevel: stress,

      energyLevel: energy,

      anxietyLevel: anxiety,

      moment: new Date(),

      annotation: annotation,

      moodComponents: components.map((c) => ({

        component: c.id.toUpperCase(),

        intensity: intensityToValue(c.intensity),

      })),

    };

    const result = await createMoodEntry.mutateAsync(data);

    const moodId = result.mood.id;

    const careActionId = useCareActionLinkStore.getState().linkMood();

    if (careActionId && moodId) {

      await patchCareAction.mutateAsync({

        id: String(careActionId),

        data: { moodId },

      });

    }

    reset();

    router.replace(`/new/post-mood?moodId=${moodId}`);

  };

  const editComponents = () => {

    router.push("/entry/mood-components");

  };

  return (

    <View>

      <ScrollView scrollEventThrottle={16}>

        <View style={styles.container}>

          <Center>

            <Text style={styles.statusPrefix} testID="text-status-prefix">

              Como você está se sentindo agora?

            </Text>

            <Text style={styles.statusText}>

              {getMood(selectedMood ?? '')?.label ?? "Neutro"}

            </Text>

          </Center>

          <Card style={styles.resumeCard}>

            <Text style={styles.infoText}>

              Não existe resposta certa ou errada. Estime, de 0 a 10, como tu

              percebe tua energia, estresse e ansiedade neste momento. O

              objetivo é registrar uma impressão geral, não uma medida precisa.

            </Text>

            <Col gap={24}>

              <ScaleSlider

                variant="rich"

                label="Energia"

                value={energy}

                onValueChange={setEnergy}

                icon={

                  <Ionicons name="flower-outline" size={20} color={tintColor} />

                }

                minLabel="Baixa"

                maxLabel="Alta"

              />

              <ScaleSlider

                variant="rich"

                label="Ansiedade"

                value={anxiety}

                onValueChange={setAnxiety}

                icon={<Ionicons name="sad-outline" size={20} color="#FB923C" />}

                minLabel="Calmo"

                maxLabel="Ansioso"

              />

              <ScaleSlider

                variant="rich"

                label="Estresse"

                value={stress}

                onValueChange={setStress}

                icon={<Ionicons name="flame" size={20} color="#f87171" />}

                minLabel="Relaxado"

                maxLabel="Estressado"

              />

            </Col>

          </Card>

          <Card style={styles.annotationsCard}>

            <TextArea

              label="Notas sobre o dia"

              variant="darkGhost"

              onChangeText={(val) => setAnnotation(val)}

              value={annotation}

              minRows={4}

              maxRows={6}

              placeholder="Escreva uma nota rápida sobre o seu dia até o momento..."

              testID="input-notes"

            />

          </Card>

          <Section>

            <SectionHeader title="Também estou..." />

            {components.length > 0 ? (

              <Grid gap={2} style={{ marginTop: 8 }}>

                {components.map((comp) => (

                  <MoodComponentCard

                    key={comp.id}

                    id={comp.id}

                    intensity={comp.intensity}

                  />

                ))}

              </Grid>

            ) : null}

            <Button

              title="Adicionar estados & emoções"

              onPress={editComponents}

              textStyle={{ fontWeight: 500 }}

              variant="dashed"

              testID="button-add-mood-components"

            />

          </Section>

          <Button

            title="Salvar Registro"

            onPress={saveMoodEntry}

            disabled={!components.length}

            testID="button-save-entry"

          />

        </View>

      </ScrollView>

    </View>

  );

}

const styles = StyleSheet.create({

  container: {

    gap: 24,

    paddingHorizontal: Spacing.containerPadding,

    paddingVertical: Spacing.sectionGap,

  },

  infoText: {

    ...Typography.labelSm,

    color: Colors.light.textSecondary,

    marginBottom: 20,

    fontWeight: "400" as const,

  },

  statusText: {

    ...Typography.headlineXg,

    fontWeight: 900

  },

  statusPrefix: {

    ...Typography.bodyMd,

  },

  annotationsCard: {

    padding: Spacing.cardGap,

  },

  resumeCard: {

    padding: Spacing.cardGap,

  },

});